// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_OVERLAY_TRANSFORM_H_
#define UI_GFX_OVERLAY_TRANSFORM_H_

namespace gfx {

// Describes transformation to be applied to the buffer before presenting
// to screen.  Rotations are expressed anticlockwise.
enum OverlayTransform {
    OVERLAY_TRANSFORM_INVALID,
    OVERLAY_TRANSFORM_NONE,
    OVERLAY_TRANSFORM_FLIP_HORIZONTAL,
    OVERLAY_TRANSFORM_FLIP_VERTICAL,
    OVERLAY_TRANSFORM_ROTATE_90,
    OVERLAY_TRANSFORM_ROTATE_180,
    OVERLAY_TRANSFORM_ROTATE_270,
    OVERLAY_TRANSFORM_LAST = OVERLAY_TRANSFORM_ROTATE_270
};

} // namespace gfx

#endif // UI_GFX_OVERLAY_TRANSFORM_H_
